Dream Pro Recharge 9 Inch Gel-Infused Memory Foam Mattress, Twin Lunair gel-infused top-layer memory foam improves airflow and expels trapped heat to let you sleep longer, cooler and deeper Visco mid-layer memory foam contours to your body to eliminate pressure points and provide custom support for a rejuvenating nights sleep CertiPUR-US certified flexible polyurethane foam recovers quickly to avoid sagging and maintain shape better than traditional spring mattresses Dust-mite resistant for improved health and wellness